Igbo calendar from AD 0001 to AD 4032

The book presents a comparative analysis of the Igbo calendar in relation to the Gregorian calendar and other world calendars. It gives insight into the origin of Igbo calendar dealing with the origin of the four Igbo market days (EKE, ORIE, AFO, and NKWO). It portrays the calendar as 112 Reference Charts from AD 0001 to AD 8064 with each reference chart showing 72 related years with identical Igbo market days and Gregorian week days which co-jointly repeat every 112 years. It also gives guidance on how to read and use the calendar.